Window run



April G. T. BALFE WINDOVfRUN Original Filed July 5 1, 1940 the projections II are embedded in the adjacent surface of the board without protruding through the same into the fabric. It is to be understood, that the forming of the enveloped and reinforced strip shown in Figure 3 is produced continuously by combining the respective continuous layers l and l4l5jas,des'cribed. r r

The continuous laminated strip shown in Figure 3 is continuously combined in as described and fed through and from the combining apparatus to a forming instrumentality IT. This forming means comprises a lower roll l8 and an upper construction shown in Figure 3, but only one roll [9 which engage the strip continuously pass- 1 ing therethrough to form, 1. e. bend and shape the same to the contour shown in Figure 5. The strip so formed continuously passes to a second forming instrumentality 20 comprising a lower roll. 1 2i and an upper roll 22 which so engage the strip having the contour shown in Figure that it is formed, i. e., bent and shaped into final channel shape as shown in Figure 6Q vIt will be noted that the meeting edges or flush'joint formed by the free edges of the paper-fabric layer are disposed withinthe bottom of the channel as shown in Figure 6.

The metal working rolls l2, the combining rous- 3 and the forming and shaping instrumentalities II and I8 are positively operated to draw the continuous strip continuously through the several instrumentalities, and from the forming instru mentality 20,. the strip is continuously passed into contact with fixed guide members 23 which may be disposed within the channel or along the outer surfaces of the sides thereof, or ,both. This movement of the strip continues'and the freeedge thereof engages a trip member 24. As this mem- V ber is tripped, it is pushed upward so as to allow the channel strip to clear and by such movement, j

an electrical circuit is establishedwherebyvthe air-operated and reciprocating'punch press 25 is caused to descend and sever a predetermined length of strip. It will be noted that this predetermined length of strip will include portions in continuous process of formation as shown in Figures 3 (flat), 5 (partially bent and shapedyand 6 (completely formed), and such length is drawn by the forming and shaping instrumentalities I1 and through the same and shaped to final form. When the entire length of the predetermined strip has, been given the final channel shape as shown in Figure 6, the advanced portion is brought into contact with the high speed: rolls 26 which rotate/at a speed greater than that of the rolls l2, l3, l1 and 20 and pass the finally formed channel run to a conveyor or box for shipment. When the remote end of thefinally formed predetermined length of window run passes beyond the trip member 24, the latter des'cends to its former tripping position to be engaged by the free end of the succeeding continuous length of channel run for accomplishing the severing operation as just described. It is to be understood, that the unsevered following lengthof continuous strip continues tofeed forward afterthe severing of a predetermined length, to be engaged by'the forming and shaping instrumentalities I1 and 20, and that by reason of the more rapid: removal of the severed predetermined finally formedchannel runthrough the medium of the high-speed rolls 26, there is no opportunity for the continuous strip to engage the severed length which might result in distortion and: ing of the machine with consequent injury and delayed production.

side, the endsand the marginal edge portions of. theother side, 'It will be noted that the cloth covers thekjoint. 2 1 between the ends of the asphalt paper.

' In forming the window run material of Figure 4', only'the paper o r board is fed from the roll 16 and the metal and paper are combined in the instrumentality [3 in the manner previously described. The cloth is fed from a separate roll 28 into combining relation with the paper-enclosed metal strip and it is combined on theupper' surface of the sameby an instrumentality "similar to the instrumentality l3so as to produce the construction shown'in Figure 4 with the joint 21 concealed by the clothlayer. Thereafter, the operation of the machine is the same as previouslydescribed.

All of the instrumentalities described are operated from a single'prime 'mover such as an electric motor whereby the speed of the rolls l2, l3, IT and 22 is controlled to give a uniform feed,

the rolls 26 being given a higher speed through p the medium of a suitable gear connection andthe 35 I punch 25 being actuated in its"reciproeating movement by a suitable-clutch mechanism. It

will be noted that a simple automatic machine is provided which is quite flexible, i, e., constructions both as shown in Figures 3- and 4 being readily formed by simply connecting up the roll 28 and another combining apparatus l 3.

It will thus be seen that-I have developed a method and machine for'making window run comprising continuously feeding a thin strip of metal II] to a metal workinginstrumentality l2 and forming up-struck projections II from the upper side thereof, and continuously feeding a wider strip of non-metallic covering materials l4--l5 into combining relation with the'metal strip. The metal strip is' superposed upon the wider non-metallic strip in longitudinally cen-. tered relation thereto and the transversely extended portions of the non-metallic strip are folded so as to enclose the upper surface of the metallic strip from which the projections II extend. In thecombining instrumentality the composite or laminated strip, i. e., the metal strip enclosed in the paper-fabric strip is compressed and the projections are caused to enter or engage the non-metallic material, namely, the paper, but do not extend into the fabric surface layer. The joint or meeting edges of th paper-fabric layer are on the upper surface of the metal strip and as the composite strip is formed to window run contour, this joint lies on the inside of the channel at the bottom thereof; The independent severed, a part of it has been formed to final channel form as shown in Figure 6 while the remainder is undergoing formation in the instru- V mentalities l7. and 20. When one of these lengths has been completely formed, its advance end will have reached the high speed rolls 25 and at the same time, its remote end will have passed beyond the movable trip member 24 which returns from its moved position to be engaged by the constantly fed and formed advancing continuous channel strip, so that the repeated operation of severing the continuous channel strip into predetermined lengths is carried out. This intermittent automatic severing operation, as explained, does not result in any interruption of the constant feeding of the strip material either of the independent strips or the combined or composite strip or channel. These all move at a constant speed while the rolls 26 operate at a greater speed on the completed length of window run and thereby clear the machine of one predetermined length of ma terial substantially simultaneously with the severing of the next consecutive predetermined length from the continuous strip. The provision of the trip member affords an intermittent and automatic means for actuating the punch and also assures that the constantly fed strip will be severed in uniform predetermined lengths.

In making the channel shown in Figure 4, the operation of the machine is the same, except as stated, the soft layer is independently fed and combined with the metal layer and the fabric layer is independently fed at the same constant speed of the other instrumentalities, but on the upper surface of the composite strip of metal enclosed in bituminized paper, where two similar combining apparatuses 13 are used. This fabric layer is ofgreater width than the composite strip and its transversely extended portions are folded about the same as shown in Figure 4 to cover one surface, the ends, and the marginal areas of the opposite surface and conceal the joint 21 between the meeting ends of the paper layer. In the channel formed from this material, the fabric layer lines the interior wall of the channel.

I have referred herein to paper which is relatively thick or of thin board-like character, and in calling for paper in the claim, I mean to include this type of material as well as equivalent paper-like products. Also, I have mentioned that the paper is bituminized, i. e., is impregnated or coated, or both, with a suitable bitumen such as asphalt. Such paper will have an adherent surface to which the cloth will permanently adhere, and also the bitumen will have an adherent function between the paper and the reinforcing metal layer. In this connection, a separate adhesive may be used to adhere the cloth to the paper in some cases. It is, however, preferred to use a bituminized paper or a paper which is weather and wear-resistant and not affected by water or moisture as well as extremes in temperature.

The method and apparatus herein described are useful also in forming window channel run in which the non-metallic covering layer comprises cork composition, i. e., comininuted cork united by a binder in lieu of the paper, adhesively united to a suitable textile or other fabric backing.

In some cases, and referring particularly to Figure 4, the covering layer i5 instead of being made of fabric, is made of thin sheet metal as, for example, steel band. Such a window run material can be readily produced by the aforesaid method and apparatus, the strip of metal being fed from the roll 28 and combined and formed in the manner described.

This application is a division of my copending application Serial No. 348,935, filed July 31, 1940, now Patent 2,330,662, September 28, 1943.

I claim:

Window run material of substantially U-shape comprising a metal layer, a cellulosic layer secured to the metal layer and entirely enclosing the same and having its free end edges disposed within the channel at the bottom thereof, and a layer of cloth secured to the cellulosic layer and forming the exposed interior surface of the window run, said cloth layer continuously covering the said free end edges of the cellulosic layer at the bottom of the window run Within the same and continuously extending to cover the interior side walls and having its free end edges disposed on the outside of said U-channel and enclosing the free end top edges only of the window run.

GEORGE T. BALFE. 

